Equisetum arvense var. arenicola Heimerl Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum arvense Name Homonyms Equisetum arvense var. arenicola Heimerl Equisetum arvense var. arenicola Goiran